[Recognizing patients at high risk for myocardial infarct]]
A von Eckardstein1, H Schulte, G Assmann
1Institut für Klinische Chemie, Universitätsspital Zürich. Arnold.voneckardstein@ikc.usz.ch
Insights
Antihypertensive and hypolipidemic drugs effectively prevent coronary heart disease (CHD). Guidelines recommend lowering blood pressure and LDL-cholesterol for secondary prevention and risk assessment for primary prevention.
Area of Science:
- Cardiology
- Preventive Medicine
- Pharmacology
Context:
- Established benefits of antihypertensive and hypolipidemic medications in preventing coronary heart disease (CHD).
- Current international guidelines emphasize secondary prevention strategies for patients with manifest CHD.
- Guidelines recommend specific targets for blood pressure (<140/90 mm Hg) and LDL-cholesterol (<3 mmol/l or <2.6 mmol/l).
Purpose:
- To outline current recommendations for both secondary and primary prevention of coronary heart disease.
- To highlight the shift towards primary prevention in high-risk, presymptomatic individuals.
- To detail the risk factors necessary for calculating absolute myocardial infarction risk.
Summary:
- Controlled trials demonstrate the efficacy of antihypertensive and hypolipidemic drugs in CHD prevention.
- Secondary prevention focuses on target blood pressure and LDL-cholesterol levels in patients with existing CHD.
- Primary prevention strategies now target high-risk individuals using risk factor assessment (gender, age, family history, smoking, diabetes, lipids, blood pressure).
- Risk stratification employs epidemiological data-derived scores and algorithms to estimate annual myocardial infarction risk.
Impact:
- Informs clinical practice regarding evidence-based strategies for CHD prevention.
- Facilitates the identification and management of individuals at high risk for cardiovascular events.
- Supports the personalized approach to cardiovascular risk management through comprehensive risk factor evaluation.
Abstract:
Several controlled intervention trials proved the benefit of antihypertensive and hypolipidemic drugs for the prevention of coronary heart disease (CHD). International guidelines for the prevention of CHD agree in their recommendations for secondary prevention and recommend to lower blood pressure below 140/90 mm Hg and LDL-cholesterol below 3 mmol/l (or even < 2.6 mmol/l) in patients with manifest CHD. Novel recommendations for primary prevention are focused on the treatment of the presymptomatic high risk patient with an estimated risk of higher than 2% per year. For the calculation of this risk, the physician must record the following risk factors: gender, age, family history of premature myocardial infarction, smoking, diabetes, blood pressure, total cholesterol, LDL-cholesterol, HDL-cholesterol, and triglyceride. This information allows computing the absolute risk of myocardial infarction by using scores or algorithms which have been deduced from results of epidemiological studies.
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